Cooling device of grinding machine

Abstract

The utility model discloses a cooling device of a grinding machine, which comprises a cooling device body, the cooling device body is mounted on the outer side of a grinding tank, a mounting disc is fixedly mounted at the end part of the grinding tank, meanwhile, a main shaft mounting hole is formed in the end part of the grinding tank, and the main shaft mounting hole is matched with a driving main shaft of the grinding machine in size. The cooling device body comprises a cooling jacket, and spoilers are fixedly mounted on the inner wall of the cooling jacket. According to the cooling device of the grinding machine, fluid impacts the interiors of the spoilers in the cooling jacket, so that the fluid rotates in the cooling jacket, the circulation path of the fluid in the cooling jacket is increased, the retention time of cooling liquid in the cooling jacket is prolonged, more sufficient heat transfer can be conducted between the cooling liquid and the cylinder wall, and the cooling efficiency is improved. Therefore, heat generated in the grinding process is taken away more effectively, the temperature of the grinding cylinder is more uniform and stable, and the influence of local overheating on the grinding quality is avoided.

Description

Technical Field

[0001] This utility model relates to the field of grinding machines, specifically a cooling device for a grinding machine. Background Technology

[0002] Ultrafine powder technology is a newly discovered technology in modern times and an important means of preparing nanoscale materials. Currently, there is no rigorous definition for ultrafine powders; generally, powders with particle sizes ranging from a few nanometers to tens of micrometers are collectively referred to as ultrafine powders. Examples include the ultrafine processing of minerals and the refinement of chemical materials, which utilize equipment such as horizontal disc grinding equipment. Regarding horizontal disc grinding equipment, Chinese patent CN211514744U discloses a horizontal ultrafine sand mill device. The patent states that a water inlet is installed at the lower part of one end of the grinding jar sleeve, and a water outlet is installed at the upper part of the other end of the grinding jar sleeve. The water inlet and outlet are connected to a circulating water tank. During long-term high-speed grinding, a large amount of heat is generated due to friction. Under high temperatures, the spindle and grinding disc suffer damage and deformation. Introducing cooling water can effectively reduce the temperature inside the grinding jar and extend the service life of the sand mill device.

[0003] Although the aforementioned grinding section can cool the grinding tank through the coolant channel, the coolant flows quickly inside the coolant channel and has a short contact time with the side wall of the grinding tank, which greatly reduces the cooling effect on the grinding tank. Utility Model Content

[0004] The purpose of this invention is to provide a cooling device for a grinding machine to solve the defects mentioned in the background art, where the coolant flows rapidly in the coolant channel and has a short contact time with the side wall of the grinding tank when cooling the grinding tank, which greatly reduces the cooling effect on the grinding tank.

[0005] To achieve the above objectives, a cooling device for a grinding mill is provided, comprising a cooling device body installed on the outside of the grinding jar, with a mounting plate fixedly installed at the end of the grinding jar. A spindle mounting hole is provided inside the end of the grinding jar, and the spindle mounting hole is adapted to the size of the grinding mill's drive spindle. The cooling device body includes a cooling jacket, with baffles fixedly installed on the inner wall of the cooling jacket. An inlet pipe is fixedly installed on the bottom right side of the cooling jacket, and an outlet pipe is fixedly installed on the bottom left side of the cooling jacket. A cooling section is provided in the middle of the grinding jar, and multiple sets of heat dissipation fins are uniformly fixedly arranged on the outer circumference of the cooling section, with the distance between adjacent sets of heat dissipation fins being consistent. The heat dissipation fins are rectangular structures made of metal, and the length of the heat dissipation fins is less than the length of the cooling jacket. The multiple sets of heat dissipation fins are located inside the baffles.

[0006] Preferably, the flow-blocking plate is made of metal and has a spiral shape, and the axial cross-section of the flow-blocking plate, the cooling jacket and the grinding tank is a concentric circle structure.

[0007] Preferably, both ends of the cooling jacket are fixedly installed with fixing cylinders, and the fixing cylinders cover the outer circumference of the grinding jar and are fixed with bolts.

[0008] Preferably, the distance between the upper surface of the heat dissipation fin and the inner wall of the baffle is 0.5 cm, and the coolant enters the interior of the cooling jacket from the inlet pipe, and enters the interior of the outlet pipe under the obstruction of the baffle, and is discharged through the outlet pipe.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. In this invention, coolant enters the cooling jacket through the inlet pipe and, under the obstruction of the baffles, enters the outlet pipe and is discharged through the outlet pipe. The fluid impacts the baffles inside the cooling jacket, causing the fluid to rotate inside the cooling jacket and increasing the flow path of the fluid inside the cooling jacket. This increases the residence time of the coolant in the cooling jacket, allowing for more thorough heat transfer between the coolant and the cylinder wall. This more effectively removes the heat generated during the grinding process, making the temperature of the grinding cylinder more uniform and stable, and avoiding local overheating that could affect the grinding quality.

[0011] 2. This utility model uses multiple sets of equidistant heat dissipation fins evenly arranged on the outer side of the cooling section. The arrangement of multiple sets of heat dissipation fins can increase the heat exchange area between the coolant and the side wall of the grinding tank, thereby improving the cooling effect on the side wall of the grinding tank. Attached Figure Description

[0012] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a bottom view of the structure of this utility model;

[0014] Figure 3 This is a top view of the structure of this utility model;

[0015] Figure 4 This is a cross-sectional view of the structure of this utility model.

[0016] The following are the labels in the diagram: 1. Grinding tank; 111. Cooling section; 112. Heat dissipation fins; 2. Mounting plate; 3. Spindle mounting hole; 4. Cooling device body; 40. Cooling jacket; 41. Fixing cylinder; 42. Baffle plate; 43. Liquid inlet pipe; 44. Liquid outlet pipe. Detailed Implementation

[0017] Please see Figure 1-4 This utility model provides a cooling device for a grinding machine, including a cooling device body 4. The cooling device body 4 is installed on the outside of the grinding tank 1, and an installation plate 2 is fixedly installed at the end of the grinding tank 1. At the same time, a spindle mounting hole 3 is opened inside the end of the grinding tank 1, and the spindle mounting hole 3 is adapted to the size of the drive spindle of the grinding machine. The cooling device body 4 includes a cooling jacket 40, and a flow-blocking plate 42 is fixedly installed on the inner wall of the cooling jacket 40. At the same time, an inlet pipe 43 is fixedly installed on the bottom right side of the cooling jacket 40, and an outlet pipe 44 is fixedly installed on the bottom left side of the cooling jacket 40.

[0018] As can be seen from the above, during use, when the multiple sets of dispersing plates inside the grinding tank 1 are working, a large amount of heat is generated due to friction during the high-speed grinding process, and the temperature of the side wall of the grinding tank 1 rises. At this time, the coolant enters the interior of the cooling jacket 40 from the inlet pipe 43, and enters the interior of the outlet pipe 44 under the obstruction of the flow baffle 42, and is discharged through the outlet pipe 44. The fluid impacts the interior of the flow baffle 42 inside the cooling jacket 40, causing the fluid to rotate inside the cooling jacket 40, increasing the flow path of the fluid inside the cooling jacket 40, increasing the residence time of the coolant inside the cooling jacket 40, and enabling the coolant to transfer heat more fully to the cylinder wall, thereby more effectively removing the heat generated during the grinding process, making the temperature of the grinding cylinder more uniform and stable, and avoiding the impact of local overheating on the grinding quality.

[0019] In a preferred embodiment, a cooling section 111 is provided in the middle of the grinding tank 1, and multiple sets of heat dissipation fins 112 are uniformly fixed on the outer circumference of the cooling section 111, while the distance between two adjacent sets of heat dissipation fins 112 is consistent.

[0020] In a preferred embodiment, the heat dissipation fins 112 are rectangular structures made of metal, and the length of the heat dissipation fins 112 is less than the length of the cooling jacket 40. At the same time, multiple sets of heat dissipation fins 112 are arranged inside the flow baffle 42.

[0021] In a preferred embodiment, the flow baffle 42 is made of metal and has a spiral shape, and the axial cross-section of the flow baffle 42, the cooling jacket 40 and the grinding tank 1 is a concentric circle structure.

[0022] As can be seen from the above, when the coolant inside the cooling jacket 40 cools the cooling section 111 of the grinding tank 1, multiple sets of equidistant heat dissipation fins 112 are evenly arranged on the outer side of the cooling section 111. The arrangement of multiple sets of heat dissipation fins 112 can increase the heat exchange area between the coolant and the side wall of the grinding tank 1, thereby improving the cooling effect on the side wall of the grinding tank 1.

[0023] In a preferred embodiment, both ends of the cooling jacket 40 are fixedly installed with fixing cylinders 41, and the fixing cylinders 41 cover the outer circumference of the grinding tank 1 and are fixed with bolts.

[0024] In a preferred embodiment, the distance between the upper surface of the heat dissipation fin 112 and the inner wall of the baffle 42 is 0.5 cm, and the coolant enters the interior of the cooling jacket 40 from the inlet pipe 43, and enters the interior of the outlet pipe 44 under the obstruction of the baffle 42, and is discharged through the outlet pipe 44.

[0025] Working principle: When the multiple sets of dispersing plates inside the grinding tank 1 are working, the high-speed grinding process generates a large amount of heat due to friction, causing the side wall temperature of the grinding tank 1 to rise. At this time, the coolant enters the cooling jacket 40 from the inlet pipe 43 and enters the outlet pipe 44 under the obstruction of the flow-blocking plates 42, and is discharged through the outlet pipe 44. The fluid impacts the flow-blocking plates 42 inside the cooling jacket 40, causing the fluid to rotate inside the cooling jacket 40 and increasing the flow path of the fluid inside the cooling jacket 40, thus increasing the coolant flow within the cooling jacket. The increased residence time within the cooling jacket 40 allows for more thorough heat transfer between the coolant and the cylinder wall, effectively removing the heat generated during the grinding process. This results in a more uniform and stable temperature within the grinding cylinder, preventing localized overheating from affecting the grinding quality. Simultaneously, when the coolant inside the cooling jacket 40 cools the cooling section 111 of the grinding tank 1, multiple sets of equidistantly spaced heat dissipation fins 112 are evenly arranged on the outer side of the cooling section 111. The arrangement of multiple sets of heat dissipation fins 112 increases the heat exchange area between the coolant and the side wall of the grinding tank 1, improving the cooling effect on the side wall of the grinding tank 1.

[0026] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. Cooling device for a grinding machine, comprising a cooling device body (4), characterized in that: The cooling device body (4) is installed outside the grinding tank (1), and the end of the grinding tank (1) is fixedly installed with a mounting disc (2), and the end of the grinding tank (1) is provided with a main shaft mounting hole (3) inside, and the main shaft mounting hole (3) is matched with the size of the driving main shaft of the grinding machine, the cooling device body (4) comprises a cooling jacket (40), and the inner wall of the cooling jacket (40) is fixedly installed with a flow resistance piece (42), and the bottom right side of the cooling jacket (40) is fixedly installed with a liquid inlet pipe (43), and the bottom left side of the cooling jacket (40) is fixedly installed with a liquid outlet pipe (44). The grinding tank (1) is provided with a cooling section (111) in the middle, and a plurality of groups of heat dissipation fins (112) are uniformly and fixedly arranged on the circumferential outer side of the cooling section (111), and the distance between the adjacent two groups of heat dissipation fins (112) is consistent. The heat dissipation fin (112) is a rectangular structure made of metal material, and the length of the heat dissipation fin (112) is less than the length of the cooling jacket (40), and a plurality of groups of heat dissipation fins (112) are arranged inside the flow resistance piece (42).

2. A cooling device for a grinding machine according to claim 1, characterized in that: The flow resistance piece (42) is a spiral structure made of metal material, and the axial section of the flow resistance piece (42), the cooling jacket (40) and the grinding tank (1) is a concentric circle structure.

3. A cooling device for a grinding machine according to claim 1, characterized in that: Both ends of the cooling jacket (40) are fixedly installed with a fixed cylinder (41), and the fixed cylinder (41) covers the circumferential outer side of the grinding tank (1) and is fixed by bolts.

4. A cooling device for a grinding machine according to claim 1, characterized in that: The distance between the upper surface of the heat dissipation fin (112) and the inner wall of the flow resistance piece (42) is 0.5cm, and the cooling liquid enters the inside of the cooling jacket (40) from the liquid inlet pipe (43), and enters the inside of the liquid outlet pipe (44) under the blocking work of the flow resistance piece (42), and is discharged through the liquid outlet pipe (44).

Images